Power adapter



FIG. 1 is a perspective view of a power adapter showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is second perspective view thereof; and,

FIG. 9 is third perspective view showing the power adapter.

The broken lines shown in the drawings represent portions of the power adapter that form no part of the claimed design. 

CLAIM The ornamental design for a power adapter, as shown and described. 